diff --git a/ui/components/ui/chart.tsx b/ui/components/ui/chart.tsx
index 329e1cb6..7e9561d5 100644
--- a/ui/components/ui/chart.tsx
+++ b/ui/components/ui/chart.tsx
@@ -260,7 +260,7 @@ function ChartTooltipContent({
 
             return (
               <div
-                key={item.dataKey}
+                key={key}
                 className={cn(
                   '[&>svg]:text-muted-foreground flex w-full flex-wrap items-stretch gap-2 [&>svg]:h-2.5 [&>svg]:w-2.5',
                   indicator === 'dot' && 'items-center'